Home / 1,028,028.60-1,419,550.38-646,178.40

Finding the Fourth Proportional to 1,028,028.60, 1,419,550.38 and 646,178.40

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Solution

The fourth proportional to 1,028,028.60, 1,419,550.38 and 646,178.40 is: 892,273.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,028.60 : 1,419,550.38 = 646,178.40 : x
  2. Step 2: Convert to fraction form
    1,028,028.60/1,419,550.38 = 646,178.40/x
  3. Step 3: Cross multiply
    1,028,028.60x = 1,419,550.38 × 646,178.40
  4. Step 4: Simplify right side
    1,028,028.60x = 917,282,793,267.79
  5. Step 5: Solve for x
    x = 917,282,793,267.79/1,028,028.60
  6. Step 6: Final answer
    x = 892,273.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.